Chemical Reactions

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Active Learning | Entry Level

Subject: Science

Video Transcription

[Teacher voiceover]

We will use the document camera to demonstrate small experiments that will show the students things that can happen helping them to connect things they already understand and make new connections and form new concepts on the current topics that we’re studying.

[Teacher speaking to class]

What we want to do is look at what happens when a reaction takes place, and so we have a little beaker and this has acetic acid in there, and you guys should all know how to write the formula for acetic acid because we did that already, and what we’re going to do is add a solid substance to that, and you can see that a reaction took place, and you need to be able to link to that. what did we see happen?

[Teacher voiceover]

I am using the projector and a PowerPoint presentation to help provide additional information for the students so that they can make new connections.

[Teacher speaking to class]

…is how that actually works. And so when we put this into a solution, it actually breaks that molecule apart, and it’s because of the polarity of the water that it that it actually does that. So we have a water molecule coming in contact. This could be like sodium chloride. And so what you see is what typically is the charge that is on oxygen. So this would be an animation that would kind of show what that process looks like in action.

[Teacher voiceover]

By using this technology in the classroom, the students not only are able to quickly acquire the information, but they are also able to make connections to future employment, future applications that they may actually have to use once they get out into the workforce.

[Student 1 speaking]

I believe that the document projector is the best equipment in the digital classroom, because it makes notes easier to see. It puts it right up on the board and you can alter it, so that if like someone like myself has a site problem, the teacher can zoom in and zoom out in order for the whole class to see.

Video Transcription

[Teacher voiceover]

We will use the document camera to demonstrate small experiments that will show the students things that can happen helping them to connect things they already understand and make new connections and form new concepts on the current topics that we’re studying.

[Teacher speaking to class]

What we want to do is look at what happens when a reaction takes place, and so we have a little beaker and this has acetic acid in there, and you guys should all know how to write the formula for acetic acid because we did that already, and what we’re going to do is add a solid substance to that, and you can see that a reaction took place, and you need to be able to link to that. what did we see happen?

[Teacher voiceover]

I am using the projector and a PowerPoint presentation to help provide additional information for the students so that they can make new connections.

[Teacher speaking to class]

…is how that actually works. And so when we put this into a solution, it actually breaks that molecule apart, and it’s because of the polarity of the water that it that it actually does that. So we have a water molecule coming in contact. This could be like sodium chloride. And so what you see is what typically is the charge that is on oxygen. So this would be an animation that would kind of show what that process looks like in action.

[Teacher voiceover]

By using this technology in the classroom, the students not only are able to quickly acquire the information, but they are also able to make connections to future employment, future applications that they may actually have to use once they get out into the workforce.

[Student 1 speaking]

I believe that the document projector is the best equipment in the digital classroom, because it makes notes easier to see. It puts it right up on the board and you can alter it, so that if like someone like myself has a site problem, the teacher can zoom in and zoom out in order for the whole class to see.

Objectives

Observe a chemical reaction

Identify what happens when a reaction takes place

Write a formula to describe the reaction taking place

Understand why chemical reactions occur

Explain the process that occurs when a chemical reaction takes place

Procedure

Students observe what happens when a chemical reaction takes place

Students will use prior knowledge to write the formula to describe the reaction they observed

Students view PowerPoint slides explaining what occurs when a chemical reaction takes place

Students view animations showing what happens when a chemical reaction takes place

Technology Present

Document Camera

Projector

PowerPoint slideshow

Grade Level: 9-12

Note: The TIM is about teaching, not technology. The placement of videos on the TIM is based entirely on the teaching practices demonstrated in the lesson and not on the specific technology employed. Simple or even out-dated technology can be used at the higher levels of technology integration just as the latest or most complex technology can be used at lower levels.